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  • Removing / Disabling  the Hyper-V - Role
  • Virtualbox 6.1  + Oracle VM Virtual Box Extension Pack 6.1 installed

Removing the Hyper-V - Role:

# Powershell
Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-Hypervisor -All

DISM /Online /Disable-Feature:Microsoft-Hyper-V

Disabling the Hyper-V - Role:

bcdedit /set hypervisorlaunchtype off

Installing Ubuntu: